Create unit7_ex7.2.4.py

unit7_ex7.2.4.py

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+# exercise 7.2.4 from unit 7
+'''
+Write a function called seven_boom which simulates the game "Seven Boom". The function is defined as:
+
+def seven_boom(end_number):
+The function accepts an integer, end_number.
+The function returns a list in the range of numbers 0 to end_number inclusive, with certain numbers replaced by the string 'BOOM', if they meet one of the following conditions:
+
+The number is a multiple of the number 7.
+The number contains the digit 7.
+Example of running the seven_boom function:
+>>> print(seven_boom(17))
+['BOOM', 1, 2, 3, 4, 5, 6, 'BOOM', 8, 9, 10, 11, 12, 13, 'BOOM', 15, 16, 'BOOM']
+'''
+
+def seven_boom(end_number):
+    result = []
+    for i in range(1, end_number+1):
+        if i % 7 == 0 or '7' in str(i):
+            result.append('BOOM')
+        else:
+            result.append(i)
+    return result
+
+def main():
+    print(seven_boom(21))
+
+if __name__ == '__main__':
+    main()